Types of Controls - hdbk11080117

DOE-HDBK-1108-97

Radiological Training for Accelerator Facilities

Student's Guide

IV.

TYPES OF CONTROLS

EO-12 DESCRIBE each access mode at the facility and access to beam and beam containment

including interlocks and warning devices and systems.*

Many types of controls are used at accelerator facilities to protect personnel from exposure to

ionizing radiation and other hazards such as:

Electrical.

Mechanical.

Cryogenic.

Non-ionizing radiation.

The design of an effective safety program incorporates a combination of engineered and

administrative controls and personnel protective equipment, (e.g., respirators, protective clothing

etc). However, per 10 CFR 835.1001(a) the primary methods used shall be physical design

features. Administrative controls and procedural requirements shall be employed only as

supplemental methods to control radiation exposure.

The following sections describe the various controls encountered at accelerator facilities that are

designed to protect personnel from ionizing radiation.

EO-11 IDENTIFY engineered and administration controls (Facility Specific)

Engineered Controls

Equipment designed to protect personnel from a hazard by preventing entry to accelerator

enclosures, providing a warning of impending beam, or means to shield out or remove the source

of the hazard. Engineered controls may be active or passive.